Europe’s largest battery storage project is now fully operational near Swindon

Penso Power Limejump Minety

Europe’s largest battery storage project, the 100-megawatt system in Minety near Swindon in Wiltshire, is now fully operational. Controlled and optimised by Shell-owned Limejump, the battery will help balance the UK’s electricity demand, with the capacity to provide electricity for up to 10,000 homes in a 24-hour period before being recharged.

The Minety project, consisting of two 50-megawatt batteries, was developed by Penso Power and funded by China Huaneng Group and CNIC Corporation. Shell and Limejump structured a deal offering revenue certainty for multiple years via the backing of Shell’s offtaking capabilities whilst maximising revenues with Limejump’s tech-led battery optimisation and trading skill set. This is pivotal for battery storage developers as there is a high degree of uncertainty in UK power markets.

The Minety scheme is now the largest battery within National Grid ESO’s Dynamic Containment market, which was set up last year to deal with sudden frequency issues through grid balancing.

Catherine Newman, CEO of Limejump said: “Delivering the Minety project during Covid has been an amazing team effort, and with our colleagues at Shell, we can now focus on optimising Minety’s performance and supporting National Grid ESO.”

“This battery scheme will play a pivotal role in balancing the supply and demand, especially as we continue to successfully integrate more and more renewable energy nationwide.  More  batteries will be needed to add that extra boost of energy when the sun or wind are not out in force. We all want a greener and cleaner future and batteries are a key enabler for this.”